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Fig. 4
Position–velocity diagram along the disk major axis (see exact axis represented in Fig. 1, left panel). The best fit to the data correspond to a Keplerian velocity profile for a systemic velocity of 5.95 km s-1; an inclination of i(°) = 67; and a central mass of 1.3 (dotted), 1.5 (solid) and 1.7 M⊙ (dashed).
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